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    Mazda went one step further (MX5) fitting an oil...

    Mazda went one step further (MX5) fitting an oil pressure gauge operated by a switch, as long as there was enough pressure to operate the switch the gauge indicated mid scale.
    Some people questioned...
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    That makes sense too

    That makes sense too
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    Sounds about right for RPI!

    Sounds about right for RPI!
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    my thoughts too. Modify as little as possible....

    my thoughts too. Modify as little as possible. Plate thickness would have to be taken into account of course.
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    I seem to recall RPI were playing about mating...

    I seem to recall RPI were playing about mating MX5/RX8 gearboxes to the RV8. Any idea what they used clutch wise?
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    Can’t give you exact figures but can (more or...

    Can’t give you exact figures but can (more or less) guarantee that the front disk mount PCD is not the same as the wheel mount PCD.
    i made sure me spacers for my discs and they don’t fit the...
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    Few mm is way too much. Sounds like you’ve only...

    Few mm is way too much. Sounds like you’ve only either got the wrong clutch cover(s) or the wrong flywheel. Possibly one which has had a new hole pattern (badly) machined on to it.
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    How "slight" is the miss-alignment? Could be the...

    How "slight" is the miss-alignment? Could be the cover has some distortion and if pulled true may be correct.
    Do the bolt holes align?

    There's a few things I'd avoid secondhand, parachutes and...
  9. Thread: Kit car shows.

    by GDCobra
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    383

    Do they charge for breathing as well?

    Do they charge for breathing as well?
  10. Thread: Push or Pull

    by GDCobra
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    Another vote for pulling air from front to rear...

    Another vote for pulling air from front to rear through the rad'. This makes sense in many ways but the obvious one is that if you were to push warm, engine bay, air from the rear to the front,...
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    Seems that the washer is intended to be the...

    Seems that the washer is intended to be the sealing mechanism (or why would it be there) so my instinct would be to fix that rather than the thread.
    Looks metallic, hopefully Aluminium rather than...
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    Looks in great condition though!

    Looks in great condition though!
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    Winding up the spring will not change the...

    Winding up the spring will not change the stiffness. When you jack up the lower spring mount this movement is simply passed on to the top of the spring hence ride height lifted the compressed spring...
  14. Thread: poor starting

    by GDCobra
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    I'm surprised at anybody not doing that, maybe...

    I'm surprised at anybody not doing that, maybe I'm just old fashioned (or maybe just old!). I was taught to do that while learning to drive and more importantly why (as I'm a bit of a rebel and...
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    OK. So you're telling me there's a chance! ...

    OK.

    So you're telling me there's a chance!

    https://www.youtube.com/watch?v=KX5jNnDMfxA
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    It can't be less than zero. Go on, put a figure...

    It can't be less than zero. Go on, put a figure on it. 100:1? 1000:1?
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    Depends on if you need some in your pencil!

    Depends on if you need some in your pencil!
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    Sounds good enough to drink!

    Sounds good enough to drink!
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    You may well be correct, as I say I'm only half...

    You may well be correct, as I say I'm only half remembering the discussion we had (over 15 years ago now) and may have been based on BS so just forwarding it on. Thought it was possibly not correct...
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    Presumably the US engines will be built to run...

    Presumably the US engines will be built to run with lead free fuel (hard valve seats) without need for additive (unless very old) as they've been running only unleaded for decades.
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    Is that correct? I (half) remember some...

    Is that correct? I (half) remember some discussions with a colleague over in LA who had a BMW M3 Roadseter (or some similar name, basically a Z3 with the 3.2L M3 engine), this made less power in...
  22. Thread: First run

    by GDCobra
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    As already said retarded timing will give hotter...

    As already said retarded timing will give hotter running, if you're running ported vacuum to the distributor you'll have no advance at idle so will run hotter.
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    I must admit I thought that when I looked at the...

    I must admit I thought that when I looked at the figures in KugaWestie's post yesterday. I remember reading some time back about alternative vacuum 'pots' which would give their full 'stroke' at...
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    A mechanical distributor separates load and RPM...

    A mechanical distributor separates load and RPM and adds them together, the only reason you don’t get 20odd degrees at idle is due to using ported outlet, should be possible to copy this or use...
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    Hi Rob I'm just thinking of how this would...

    Hi Rob

    I'm just thinking of how this would work with a vacuum spring/diaphragm setup on a distributor, in that case increasing levels of vacuum (MAP tending towards zero) will give increasing...
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